<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Class template lognormal_distribution</title>
<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset">
<link rel="up" href="../../boost_random/reference.html#doxygen.headers.lognormal__distribution_8hpp" title="Header &lt;boost/random/lognormal_distribution.hpp&gt;">
<link rel="prev" href="classboost_1_1random_1_1linear__feedback__shift__engine.html" title="Class template linear_feedback_shift_engine">
<link rel="next" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td>
<td align="center"><a href="../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="classboost_1_1random_1_1linear__feedback__shift__engine.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_random/reference.html#doxygen.headers.lognormal__distribution_8hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="refentry">
<a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class template lognormal_distribution</span></h2>
<p>boost::random::lognormal_distribution</p>
</div>
<h2 class="refsynopsisdiv-title">Synopsis</h2>
<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../boost_random/reference.html#doxygen.headers.lognormal__distribution_8hpp" title="Header &lt;boost/random/lognormal_distribution.hpp&gt;">boost/random/lognormal_distribution.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> RealType <span class="special">=</span> <span class="keyword">double</span><span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <a class="link" href="classboost_1_1random_1_1normal__distribution.html" title="Class template normal_distribution">normal_distribution</a><span class="special">&lt;</span> <span class="identifier">RealType</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">input_type</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a14e6925d4b1f644b5d83d1751e1dbfd6"></a><span class="identifier">input_type</span><span class="special">;</span> 
  <span class="keyword">typedef</span> <span class="identifier">RealType</span>                                    <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ad7786d624139427109a5094f0110e385"></a><span class="identifier">result_type</span><span class="special">;</span>

  <span class="comment">// member classes/structs/unions</span>

  <span class="keyword">class</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">{</span>
  <span class="keyword">public</span><span class="special">:</span>
    <span class="comment">// types</span>
    <span class="keyword">typedef</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1a5f58feb2955e9ee25a072ead9bce3329"><span class="identifier">distribution_type</span></a><span class="special">;</span>

    <span class="comment">// <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#id-1_3_32_5_6_27_1_1_1_3_2-bb">public member functions</a></span>
    <span class="keyword">explicit</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1aa2fbc0f30496d1cbc667bf84b2d6e01b"><span class="identifier">param_type</span></a><span class="special">(</span><span class="identifier">RealType</span> <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="number">0</span><span class="special">,</span> <span class="identifier">RealType</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">)</span><span class="special">;</span>
    <span class="identifier">RealType</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1a97df404e832249bb034e1871367d4475"><span class="identifier">m</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
    <span class="identifier">RealType</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1a33d7531bf2336495dac84a8294fac73d"><span class="identifier">s</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>

    <span class="comment">// <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#id-1_3_32_5_6_27_1_1_1_3_3-bb">friend functions</a></span>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
      <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
      <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1a36d2820c7e758fa1a94fdd5d74949e54"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
      <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
      <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1aa94ff75dd5871ee80a6fc0a095c75bd0"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">bool</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1ae6f3b58e629ce7a54b5e18a4f05dbc5a"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">bool</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1_1param__type_1aa559d0d98e88e84417364a89b83cf5b2"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="special">}</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#id-1_3_32_5_6_27_1_1_1_6-bb">public member functions</a></span>
  <span class="keyword">explicit</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a00b68e7b13eb0a895d7cccff9713fbdf"><span class="identifier">lognormal_distribution</span></a><span class="special">(</span><span class="identifier">RealType</span> <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="number">0</span><span class="special">,</span> <span class="identifier">RealType</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">explicit</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ae890a2bd090e6153e5ef7b4063d50895"><span class="identifier">lognormal_distribution</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">RealType</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a86fb0bd859d3d0084c29541ec458b96d"><span class="identifier">m</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">RealType</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ab85ba78a06b81b02c51d16945a4e493c"><span class="identifier">s</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">RealType</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a3bf6323b2a8b7412939d17fc8e7231be"><span class="identifier">min</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">RealType</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1af8fe6240128969ed916b1c66d6ba0728"><span class="identifier">max</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a5b67dec26b76fa5b9d30f1bb82f23603"><span class="identifier">param</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ab56d409fbfc13e014876d56e5f62569d"><span class="identifier">param</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1aa0a256259fac9292e594f864f9a777da"><span class="identifier">reset</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Engine<span class="special">&gt;</span> <span class="identifier">result_type</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a61af690f5b32b5a81b4bcff4f0daa5ec"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Engine<span class="special">&gt;</span> 
    <span class="identifier">result_type</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a29602312b55f7e82e9629d0d4214c446"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#id-1_3_32_5_6_27_1_1_1_7-bb">friend functions</a></span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
    <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a9843fad49fbbcf9a3ad6292bbc747d22"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
    <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a331123fac809f02a0b6d4fb535c87379"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1acb971a2bb5333dc6f396add21d986242"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html#doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a67397e71ff2e6b2552e75fe24f28de10"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.32.5.6.26.3.4"></a><h2>Description</h2>
<p>Instantiations of class template <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> model a  <a class="link" href="../../boost_random/reference.html#boost_random.reference.concepts.random_distribution" title="Random Distribution">random distribution</a> . Such a distribution produces random numbers with <span class="inlinemediaobject"><img src="../../images/random//form_29.png"></span> for x &gt; 0.</p>
<p> </p>
<div class="warning"><table border="0" summary="Warning">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../../../../doc/src/images/warning.png"></td>
<th align="left">Warning</th>
</tr>
<tr><td align="left" valign="top"><p>  This distribution has been updated to match the C++ standard. Its behavior has changed from the original boost::lognormal_distribution. A backwards compatible version is provided in namespace boost.  </p></td></tr>
</table></div>
<p>  </p>
<div class="refsect2">
<a name="id-1.3.32.5.6.26.3.4.4"></a><h3>
<a name="id-1_3_32_5_6_27_1_1_1_6-bb"></a><code class="computeroutput">lognormal_distribution</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a00b68e7b13eb0a895d7cccff9713fbdf"></a><span class="identifier">lognormal_distribution</span><span class="special">(</span><span class="identifier">RealType</span> m <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="number">0</span><span class="special">,</span> <span class="identifier">RealType</span> s <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>
<p>Constructs a <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a>. <code class="computeroutput">m</code> and <code class="computeroutput">s</code> are the parameters of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ae890a2bd090e6153e5ef7b4063d50895"></a><span class="identifier">lognormal_distribution</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span> param<span class="special">)</span><span class="special">;</span></pre>
<p>Constructs a <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> from its parameters. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a86fb0bd859d3d0084c29541ec458b96d"></a><span class="identifier">m</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the m parameter of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ab85ba78a06b81b02c51d16945a4e493c"></a><span class="identifier">s</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the s parameter of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a3bf6323b2a8b7412939d17fc8e7231be"></a><span class="identifier">min</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the smallest value that the distribution can produce. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1af8fe6240128969ed916b1c66d6ba0728"></a><span class="identifier">max</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the largest value that the distribution can produce. </p>
</li>
<li class="listitem">
<pre class="literallayout"><a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a5b67dec26b76fa5b9d30f1bb82f23603"></a><span class="identifier">param</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the parameters of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1ab56d409fbfc13e014876d56e5f62569d"></a><span class="identifier">param</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span> param<span class="special">)</span><span class="special">;</span></pre>
<p>Sets the parameters of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1aa0a256259fac9292e594f864f9a777da"></a><span class="identifier">reset</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Effects: Subsequent uses of the distribution do not depend on values produced by any engine prior to invoking reset. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Engine<span class="special">&gt;</span> <span class="identifier">result_type</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a61af690f5b32b5a81b4bcff4f0daa5ec"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&amp;</span> eng<span class="special">)</span><span class="special">;</span></pre>
<p>Returns a random variate distributed according to the lognormal distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Engine<span class="special">&gt;</span> 
  <span class="identifier">result_type</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a29602312b55f7e82e9629d0d4214c446"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&amp;</span> eng<span class="special">,</span> <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span> param<span class="special">)</span><span class="special">;</span></pre>
<p>Returns a random variate distributed according to the lognormal distribution with parameters specified by param. </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.32.5.6.26.3.4.5"></a><h3>
<a name="id-1_3_32_5_6_27_1_1_1_7-bb"></a><code class="computeroutput">lognormal_distribution</code> friend functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
  <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a9843fad49fbbcf9a3ad6292bbc747d22"></a><span class="keyword">operator</span><span class="special">&lt;&lt;</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> os<span class="special">,</span> 
             <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span> ld<span class="special">)</span><span class="special">;</span></pre>
<p>Writes the distribution to a <code class="computeroutput">std::ostream</code>. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
  <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a331123fac809f02a0b6d4fb535c87379"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> is<span class="special">,</span> 
             <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span> ld<span class="special">)</span><span class="special">;</span></pre>
<p>Reads the distribution from a <code class="computeroutput">std::istream</code>. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1acb971a2bb5333dc6f396add21d986242"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span> lhs<span class="special">,</span> 
                <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span> rhs<span class="special">)</span><span class="special">;</span></pre>
<p>Returns true if the two distributions will produce identical sequences of values given equal generators. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="doxygen.headers.classboost_1_1random_1_1lognormal__distribution_1a67397e71ff2e6b2552e75fe24f28de10"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span> lhs<span class="special">,</span> 
                <span class="keyword">const</span> <a class="link" href="classboost_1_1random_1_1lognormal__distribution.html" title="Class template lognormal_distribution">lognormal_distribution</a> <span class="special">&amp;</span> rhs<span class="special">)</span><span class="special">;</span></pre>
<p>Returns true if the two distributions may produce different sequences of values given equal generators. </p>
</li>
</ol></div>
</div>
</div>
</div>
<div class="copyright-footer">Copyright © 2000-2005 Jens Maurer<br>Copyright © 2009, 2010 Steven Watanabe<br>Copyright © 2022-2025 Matt
      Borland<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
</div>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="classboost_1_1random_1_1linear__feedback__shift__engine.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_random/reference.html#doxygen.headers.lognormal__distribution_8hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="classboost_1_1random_1_1lognormal__distribution_1_1param__type.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>
